結果
問題 | No.472 平均順位 |
ユーザー | hatoo |
提出日時 | 2017-10-19 14:04:58 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 460 ms / 2,000 ms |
コード長 | 3,090 bytes |
コンパイル時間 | 12,247 ms |
コンパイル使用メモリ | 402,188 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-11-21 07:35:35 |
合計ジャッジ時間 | 14,865 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
6,816 KB |
testcase_01 | AC | 1 ms
6,820 KB |
testcase_02 | AC | 1 ms
6,816 KB |
testcase_03 | AC | 1 ms
6,820 KB |
testcase_04 | AC | 1 ms
6,816 KB |
testcase_05 | AC | 1 ms
6,820 KB |
testcase_06 | AC | 1 ms
6,816 KB |
testcase_07 | AC | 1 ms
6,816 KB |
testcase_08 | AC | 3 ms
6,816 KB |
testcase_09 | AC | 13 ms
6,820 KB |
testcase_10 | AC | 9 ms
6,820 KB |
testcase_11 | AC | 39 ms
6,820 KB |
testcase_12 | AC | 28 ms
6,820 KB |
testcase_13 | AC | 102 ms
6,816 KB |
testcase_14 | AC | 371 ms
6,820 KB |
testcase_15 | AC | 102 ms
6,820 KB |
testcase_16 | AC | 424 ms
6,820 KB |
testcase_17 | AC | 460 ms
6,816 KB |
testcase_18 | AC | 28 ms
6,820 KB |
testcase_19 | AC | 49 ms
6,816 KB |
ソースコード
#[allow(unused_imports)] use std::cmp::{max, min, Ordering}; #[allow(unused_imports)] use std::collections::{HashMap, HashSet}; mod util { use std::io::stdin; use std::str::FromStr; use std::fmt::Debug; #[allow(dead_code)] pub fn line() -> String { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); line.trim().to_string() } #[allow(dead_code)] pub fn get<T: FromStr>() -> T where <T as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); line.trim().parse().unwrap() } #[allow(dead_code)] pub fn gets<T: FromStr>() -> Vec<T> where <T as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); line.split_whitespace() .map(|t| t.parse().unwrap()) .collect() } #[allow(dead_code)] pub fn get2<T: FromStr, U: FromStr>() -> (T, U) where <T as FromStr>::Err: Debug, <U as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); let mut iter = line.split_whitespace(); ( iter.next().unwrap().parse().unwrap(), iter.next().unwrap().parse().unwrap(), ) } #[allow(dead_code)] pub fn get3<S: FromStr, T: FromStr, U: FromStr>() -> (S, T, U) where <S as FromStr>::Err: Debug, <T as FromStr>::Err: Debug, <U as FromStr>::Err: Debug, { let mut line: String = String::new(); stdin().read_line(&mut line).unwrap(); let mut iter = line.split_whitespace(); ( iter.next().unwrap().parse().unwrap(), iter.next().unwrap().parse().unwrap(), iter.next().unwrap().parse().unwrap(), ) } } // std::cmp::Reverse doesn't have Clone. #[derive(Eq, PartialEq, Clone)] struct Rev<T>(pub T); impl<T: PartialOrd> PartialOrd for Rev<T> { fn partial_cmp(&self, other: &Rev<T>) -> Option<Ordering> { other.0.partial_cmp(&self.0) } } impl<T: Ord> Ord for Rev<T> { fn cmp(&self, other: &Rev<T>) -> Ordering { other.0.cmp(&self.0) } } #[allow(unused_macros)] macro_rules! debug { ($x: expr) => { println!("{}: {:?}", stringify!($x), $x) } } fn main() { let (n, p): (usize, usize) = util::get2(); let abc: Vec<Vec<usize>> = (0..n).map(|_| util::gets()).collect(); let mut dp = vec![usize::max_value() / 2; p + 1]; dp[0] = 0; for i in 1..n + 1 { let mut next = vec![usize::max_value() / 2; p + 1]; let v = &abc[i - 1]; for k in 0..p + 1 { for r in 0..3 { if k >= r { next[k] = min(next[k], dp[k - r] + v[r]) } } if k >= 3 { next[k] = min(next[k], dp[k - 3] + 1); } } dp = next; } println!("{}", dp[p] as f64 / n as f64); }